Home / 771,425.22-1,157,213.97-265,919.66

Finding the Fourth Proportional to 771,425.22, 1,157,213.97 and 265,919.66

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Solution

The fourth proportional to 771,425.22, 1,157,213.97 and 265,919.66 is: 398,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,425.22 : 1,157,213.97 = 265,919.66 : x
  2. Step 2: Convert to fraction form
    771,425.22/1,157,213.97 = 265,919.66/x
  3. Step 3: Cross multiply
    771,425.22x = 1,157,213.97 × 265,919.66
  4. Step 4: Simplify right side
    771,425.22x = 307,725,939,663.58
  5. Step 5: Solve for x
    x = 307,725,939,663.58/771,425.22
  6. Step 6: Final answer
    x = 398,905.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.